WO2015194537A1 - 回転電機の製造方法 - Google Patents
回転電機の製造方法 Download PDFInfo
- Publication number
- WO2015194537A1 WO2015194537A1 PCT/JP2015/067274 JP2015067274W WO2015194537A1 WO 2015194537 A1 WO2015194537 A1 WO 2015194537A1 JP 2015067274 W JP2015067274 W JP 2015067274W WO 2015194537 A1 WO2015194537 A1 WO 2015194537A1
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- WIPO (PCT)
- Prior art keywords
- conductor wire
- slot
- coil
- connection portion
- forming
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
- H02K15/0478—Wave windings, undulated windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
- H02K15/0442—Loop windings
- H02K15/045—Form wound coils
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- a conductor wire having a circular cross section is wound in a ring shape a plurality of times, and a conductor wire (slot portion) of a slot housing portion (slot portion) that is a portion housed in the slot of the conductor wire
- a method for example, see Patent Document 1 in which the cross section is deformed from a circular shape into a racetrack shape by pressing a plurality of pieces in the radial direction) with a press plate of a pressure molding machine. Conceivable.
- the conventional method of manufacturing a rotating electrical machine is configured as described above, and in a coil in which a plurality of conductor wires are wound, a plurality of stacked conductor wires are pressed together and deformed at a time.
- the conductor wire is deformed, there is a problem that the deformation of the coil, in particular, the variation in elongation in the direction corresponding to the axial direction of the rotating electrical machine is caused and the dimensional accuracy cannot be improved.
- a conductor wire processing step in which a pressurization processing step and a connection portion forming step are alternately performed, wherein the pressurization processing step pressurizes the conductor wire to plastically deform a cross section of the conductor wire, and A connecting wire forming step, wherein the connecting portion forming step forms the connecting portion on the conductor wire.
- B A coil end portion forming step of forming the coil end portion by bending the conductor wire in which the slot portion and the connection portion are formed.
- FIG. 10 is a process diagram illustrating a manufacturing process of a coil according to the second embodiment.
- FIG. 1 to 18 show a first embodiment for carrying out the present invention.
- FIG. 1 is a half sectional view showing a rotating electric machine
- FIG. 2 is a perspective view showing an armature and a rotor of the rotating electric machine.
- 3 is a perspective view showing an armature
- FIG. 4 is a perspective view showing an iron core block of the armature
- FIG. 5 is a perspective view showing a coil constituting the armature winding
- FIG. 6 is a view showing the armature winding.
- FIG. 7 is a front view for explaining a coil machining process
- FIG. 8 shows a cross-sectional shape of a conductor wire constituting the coil
- FIG. 8A shows a coil end portion.
- FIG. 8 shows a cross-sectional shape of a conductor wire constituting the coil
- FIG. 8A shows a coil end portion.
- FIG. 8B is a sectional view of the slot portion.
- FIG. 9 is a process diagram showing a coil manufacturing process
- FIG. 10 is a plan view showing a conductor wire before processing.
- FIG. 11 is an explanatory diagram showing a process of plastic working a conductor wire using a mold.
- FIG. 12 is an explanatory diagram showing the process of processing the top of the conductor wire
- FIG. 13 is a plan view showing the processing sequence of the conductor wire.
- 14 and 15 are explanatory views showing the coil formation process
- FIG. 16 is a perspective view of the armature winding.
- FIG. 17 is a plan sectional view showing the iron core block and the armature winding
- FIG. 18 is a plan view of the armature.
- the rotating electric machine has a housing 1, a rotor 5, and an armature 10.
- the housing 1 includes a bottomed cylindrical frame 2 and an end plate 3 that closes an opening of the frame 2.
- the permanent magnet type rotor 5 includes a rotating shaft 6, a rotor iron core 7, and a permanent magnet 8.
- the rotary shaft 6 is inserted and fixed at the axial center position of the rotor core 7.
- the permanent magnets 8 are embedded on the outer peripheral surface side of the rotor core 7 and are arranged at a predetermined pitch in the circumferential direction of the rotor core 7 to constitute magnetic poles.
- the armature 10 is inserted inside the cylindrical portion of the frame 2.
- the rotor 5 is disposed concentrically with the armature 10 inside the armature 10, and the rotation shaft 6 is rotatably supported by the bottom portion of the frame 2 and the end plate 3 via the bearing 4.
- the number of poles is 10
- the number of slots of the armature core 11 is 60
- the armature winding 20 is a three-phase winding. That is, the slots 13 are formed in the armature core 11 at a rate of two per phase per phase.
- the coil 21 is inserted across the five slots 13, that is, into a certain slot 13 and a slot 13 at a position separated from this slot by five.
- the coil 21 constituting the armature winding 20 is formed by processing one conductor wire 23 shown in FIG. 10 and winding it into a predetermined shape (details will be described later).
- the conductor wire 23 for example, a continuous copper wire or aluminum wire that is insulation-coated with enamel resin and has no connection portion is used.
- the cross-sectional shape of the conductor wire 23 will be described below as a rectangle, but it may be circular or a field track.
- the coil 21 includes a bundle of a left slot portion 21 a inserted into the slot 13 and a slot portion 21 e on the terminal side of the final turn portion, and a right slot inserted into another slot 13.
- the coil end portion 21b extends from the left slot portion 21a in FIG. 5 to the oblique side 21c as an extension extending diagonally to the right and diagonally downward to the right, and extends diagonally to the left and diagonally downward to the left from the right slot portion 21a. It has a hypotenuse part 21c as an extension part, and a top part 21d as a connection part that connects each hypotenuse part 21c at the approximate center between the slot parts 21a. In this way, the left and right slot portions 21a or 21e in FIG. 5 are connected via the coil end portion 21b.
- the dimension (dimension in the direction parallel to the paper surface of FIG. 7 (hereinafter referred to as the bending direction)) is t (FIG. 7).
- the dimension in the direction perpendicular to the paper surface in FIG. 7 (hereinafter referred to as the depth direction), which is a direction orthogonal to the bending direction, is w (shown in FIG. 6).
- the slot 21a has a rectangular shape with a dimension in the bending direction t1 (FIG. 7) and a dimension in the depth direction w1 (FIG. 6).
- the cross-sectional dimension of the hypotenuse 21c (same as the cross-sectional dimension of the conductor wire 23) is t ⁇ w as shown in FIG. 8A, and the cross-sectional dimension of the slot 21a is as shown in FIG. 8B. It is a rectangle of t1 ⁇ w1. In FIG. 8, t ⁇ t1 and w ⁇ w1.
- step S11 as a pressurizing process, a portion corresponding to the slot portion 21e on the terminal side of the first turn portion is driven by a fixed die 69 as a die and a press (not shown) as shown in FIG. It is inserted between the movable mold 70 to be made.
- step S12 as the connecting portion forming step, as shown in FIG. 12, the top portion 21d of the first turn portion is formed by the mold 71 and the mold 72 with reference to the terminal-side slot portion 21e.
- the conductor wire 242 having the slot portion 21e and the top portion 21d in FIG.
- step S13 as the pressurizing process, the portion corresponding to the slot portion 21a of the first turn portion is press-processed in the same manner as in step S11 with reference to the top portion 21d of the first turn portion, and the cross-sectional dimension , T ⁇ t1, w ⁇ w1, and the conductor wire 243 having the slot 21e, the top 21d, and the slot 21a shown in FIG.
- the width of the plastically deformed slot portion 21a is emphasized and narrowed.
- step S14 as the connecting portion forming step, the second top portion 21d of the first turn portion is formed on the basis of the slot portion 21a of the first turn portion as in step S12.
- pressurization step S11
- top formation step S12
- pressurization step S13
- top formation step S13
- pressurization step S13
- top formation step S14
- Pressure processing Step S13
- Top formation Step S14
- the main purpose of this series of pressurizing processes is to process the cross-sectional dimensions of the slot portion 21a and the slot portion 21e on the terminal side to desired dimensions with high accuracy and to improve the space factor when accommodated in the slot 13. It is what. It should be noted that the order of the pressing process in step S11 and the top forming process in step S12 and the order of the pressing process in step S13 and the top forming process in step S14 may be interchanged. In short, it is important to alternately perform the pressing process and the top forming process in order to ensure dimensional accuracy when the coil 21 (FIG. 7) is formed.
- step S11, step S13 a pressurization process
- step S12, S14 a top part formation process
- step S15 as a coil end part forming step and a coil forming step will be described.
- the position of the top 21d (the rightmost top 21d in FIG. 13) that holds an arbitrary portion of the conductor wire 24 shown in FIG. 13 and is adjacent to the terminal-side slot 21e. Is aligned with the center of the fixed mold 74.
- the mold 73 is pushed down to hold the top portion 21d to fix the position (FIG. 14 (b)).
- the mold 75 and the mold 76 are moved upward (in the direction of the arrow AR) in FIG. By rotating, the conductor wire 24 is bent to form the oblique side portion 21c (FIG. 14C).
- the cross-sectional dimension of the hypotenuse 21c is the same as the conductor wire 23 (FIG. 10).
- the conductor wire 24 is once moved forward in the direction perpendicular to the paper surface in FIG. 14 and removed from the molds 73 and 74, and rotated 90 degrees counterclockwise, and the position of the next top portion 21d is shown in FIG. As shown in FIG.
- the conductor wire 24 is inserted into the molds 73 and 74 from the front side to the back side in the direction perpendicular to the paper surface in FIG.
- the mold 73 is pushed down to hold the top portion 21d (FIG. 15B), and then the mold 75 and the mold 76 are rotated upward (in the direction of the arrow AR) in FIG.
- the oblique side 21c is formed by bending the line 24 (FIG. 15C).
- the oblique side portion 21c is formed while sequentially changing the top portion 21d.
- FIGS. 14 and 15 the left side of the conductor wire 24 actually exists continuously, but in each of the drawings, a state where the conductor wire 24 is cut off is shown. Since this is the same in the following embodiments, the description thereof will be omitted as appropriate.
- the slant side portion 21c of the turn is formed by the molds 73 to 76 on the basis of the top portion 21d of each turn portion formed in the top portion forming step (step S12, step S14, etc. in FIG. 9).
- a coil end portion 21b having a top portion 21d at the center is formed.
- step S15 This forms a hexagonal coil before being formed with a predetermined number of turns of the conductor wire.
- the bundle of the coil end portions 21b before forming formed in the step (step S15) is formed to have a predetermined coil end portion curvature, and the circles shown in FIGS.
- An arc-shaped (tile-shaped) coil 21 is manufactured.
- the coil 21 has a bundle of the left slot portion 21a and the slot portion 21e in FIG. 7 and a bundle of the right slot portion 21a and the slot portion 21e, and a bundle of the coil end portions 21b. It will have.
- the slot portion 21a and the slot portion 21e are stacked in a number corresponding to the number of turns of the coil 21 in the direction perpendicular to the paper surface in FIG.
- the coil 21 When the coil 21 is combined with the armature core 11 (FIG. 3) (described later), the coil 21 is inserted into the slot 13 such that the stacking direction is the radial direction of the armature core 11.
- the coil 21 By arranging 60 coils 21 formed in this manner in the circumferential direction so that some of them overlap, a cylindrical armature winding 20 shown in FIG. 16 is obtained.
- the slot cells 14 From the radial direction of the cylindrical armature winding 20, the slot cells 14 are arranged as shown in FIG. 17, the core block 12 is inserted from the radial direction, and the armature 10 shown in FIGS. 18 and 3 is assembled.
- a bundle of the left slot portion 21a and the slot portion 21e of the coil 21 shown in FIG. 7 is inserted into a certain slot 13 as shown in FIG.
- the right slot portion 21a and the slot portion of the coil 21 are inserted.
- the bundle of 21e is inserted into another slot 13 which is five away from the certain slot 13.
- the slot portion of the coil is not limited to the one inserted into two slots separated by at least one as in this embodiment, and the same effect can be obtained even if it is inserted into an adjacent slot. Play.
- FIG. FIGS. 19 and 20 show the second embodiment
- FIG. 19 is a process diagram showing a coil manufacturing process
- FIG. 20 is a plan view showing a processing sequence of conductor wires.
- a conductor wire having a cross-sectional dimension t ⁇ w having a length necessary for producing one coil, similar to that shown in FIG. 10, is prepared.
- the manufacturing process will be described with reference to FIG.
- step S21 an arbitrary portion of the conductor wire 23 (in this embodiment, it has an extension for connecting to another coil, and this extension is used as a grip allowance) is shown in FIG.
- the gripping tool 78 is used for gripping.
- step S12 the location corresponding to the slot portion 21e on the terminal side of the first turn portion is subjected to pressure processing, and the pressure processing portion (slot portion on the terminal side)
- the cross-sectional dimensions of 21e) are t ⁇ t1 and w ⁇ w1, and the conductor wire 251 having the slot 21e of FIG.
- the top portion 21d of the first turn portion is formed on the basis of the first gripped portion, and the conductor wire 252 having the slot portion 21e and the top portion 21d in FIG. 20B is formed (step S12).
- step S22 the top portion 21d as the connection portion formed earlier is set as the reference A (see FIG. 20B).
- the slot portion 21a of the first turn portion is formed by pressure processing with reference to the reference A, and the conductor wire 253 having the slot portion 21e, the top portion 21d, and the slot portion 21a of FIG. To the state.
- the second top portion 21d of the first turn portion is formed on the basis of the reference A (not shown).
- the second top portion 21d is set as a new reference B (see FIG. 20D).
- the slot portion 21a of the second turn portion is formed by pressure processing with reference to the reference B.
- the steps are sequentially performed: formation of the top portion 21d, setting of the reference C ⁇ formation of the slot portion 21a ⁇ formation of the top portion 21d ⁇ setting of the reference D ⁇ formation of the slot portion 21a.
- step S15 in the same manner as shown in FIG. 14, the conductor line 25 is formed a predetermined number of times while sequentially forming the oblique side portion 21c with reference to the top portion 21d of each turn formed in the top portion forming step. Winding and making coil before forming.
- the coil end portion of the coil formed in the above process is bent into an arc shape with a predetermined curvature, and the arc-shaped coil 21 similar to that shown in FIG. 5 is manufactured.
- step S11 and the top forming process in step S12 and the order of the pressing process in step S13 and the top forming process in step S14 may be interchanged. Contrary to the above, starting from the press working at the location corresponding to the slot portion 21e on the terminal side of the final turn portion of the coil 21, pressurization at the location corresponding to the slot portion 21e on the terminal side of the first turn portion.
- the conductor wire 25 shown in FIG. 20D may be formed after finishing the processing.
- FIG. 20A an example is shown in which a gripping margin is provided on one terminal side and gripped by the gripping tool 78 to form the slot portion 21e. If the slot portion 21e is not provided, the portion other than the portion corresponding to the slot portion 21e to be processed first is gripped to process the slot portion 21e, and thereafter the processing shown in FIG. It may be.
- the coil can be formed with higher dimensional accuracy.
- FIG. FIGS. 21 to 24 show the third embodiment
- FIG. 21 is a process diagram showing a coil manufacturing process
- FIGS. 22 to 24 are explanatory diagrams for explaining a process of processing a conductor wire.
- the oblique side portion 21c is formed at the same time in the step of forming the top portion 21d shown in the second embodiment.
- the conductor wire 23 is gripped at an arbitrary location (step S21), the portion corresponding to the slot portion 21e on the terminal side of the first turn portion is pressed, and the conductor wire 26 having the slot portion 21e is formed.
- the manufacturing (step S11) is the same as in the second embodiment of FIG.
- step S31 as the connecting portion forming step and the coil end portion forming step, as shown in FIG. 22, using the molds 81 to 84 that can simultaneously form the top portion and the oblique side portion, the oblique side portion 21c is formed at the time of forming the top portion 21d. Are simultaneously formed. That is, as shown in FIG.
- the conductor wire 261 formed with the slot portion 21e on the terminal side of the first turn portion is aligned with the mold 82 with reference to the slot portion 21e, and then the mold 81
- the conductor wire 261 is pressed to form the top portion 21d and the oblique side portion 21c to form a conductor wire 262 having the slot portion 21e, the oblique side portion 21c, the top portion 21d, and the oblique side portion 21c in the state of FIG.
- the mold 83 and the mold 84 are rotated upward (in the direction of the arrow AR) in FIG. 23, the conductor wire 262 is bent, and the state shown in FIG. Conductor wire 263.
- the above is step S31.
- the conductor wire 263 is taken out in front of the direction perpendicular to the paper surface in FIG. 22 and rotated 90 degrees counterclockwise to obtain the state shown in FIG.
- the top portion 21d formed in step S31 is set as a reference A (step S22)
- the slot portion 21a is subjected to pressure processing with reference to the reference A
- the conductor wire in the state of FIG. H.264 step S13.
- the conductor wire 264 in which the slot portion 21a is newly formed is aligned with the mold 82 with reference to the slot portion 21a, and the mold 81 is pushed downward in FIG.
- the conductor wire 265 in the state of 24 (b) is used, and the molds 83 and 84 are further rotated in the direction of the arrow AR in the figure to form the top portion 21d and the oblique side portion 21c, and the conductor wire in the state of FIG. 265 (step S32 as a connection portion forming step and a coil end portion forming step). Further, although not shown, the top portion 21d formed this time is set as a reference B (step S23), and thereafter the steps of forming the slot portion 21a and forming the top portion 21d and the oblique side portion 21c are sequentially repeated to form the conductor wire 23. Is formed by a predetermined number of turns before forming.
- the coil is formed in the order of reference setting ⁇ pressing process ⁇ top portion formation and oblique side portion formation ⁇ reference setting ⁇ .
- the conductor wire 266 in the state of FIG. Since the portion 21e and the portion of the conductor wire before pressure molding, which is processed into the slot portion 21a by pressure molding, overlap in a direction perpendicular to the paper surface, when the slot portion 21a is formed by pressure molding, it is already added.
- the slot portion 21e that has been pressure-molded is not sandwiched between molds (the fixed mold 69 and the movable mold 70, see FIG.
- the number of processes can be reduced and productivity can be improved by simultaneously forming the top portion and the oblique side portion.
- FIG. 25 and 26 show the fourth embodiment
- FIG. 25 is a process diagram showing a coil manufacturing process
- FIG. 26 is an explanatory diagram for explaining a process of processing a conductor wire.
- the conductor wire is gripped at an arbitrary location (however, in order to avoid later gripping replacement, the portion corresponding to the oblique side portion 21c), the processing is started, and the gripping to the end is performed before forming.
- the coil is made.
- the conductor wire 23 is gripped at an arbitrary location (step S41 as a conductor wire gripping step).
- the subsequent processing steps are performed with the conductor wire held and based on this holding position. After that, as in FIG.
- the slot portion 21e on the terminal side of the first turn portion (corresponding to the following, abbreviated to be described below) is pressed and processed in FIG.
- a conductor wire 241 in the state of a) is formed (step S11)
- the top portion is formed to form a conductor wire 242 in the state of FIG. 26B (step S12)
- the slot portion 21a is pressed to perform the process of FIG.
- the conductor wire 243 is in the state (step S13), and the top 21d is formed (step S14) in this order. Since the subsequent processing is the same as in the first embodiment, description thereof is omitted.
- a conductor wire 24 shown in FIG. 26 (d) is formed in order from the first turn portion to the last turn portion or from the last turn portion to the first turn portion, which is the same as the conductor wire 24 shown in FIG.
- the order of pressurization and top formation may be switched.
- the process of re-gripping the conductor wire (changing the reference) can be reduced by making the reference until the final turn without changing the first gripped portion.
- FIG. 27 to 29 show the fifth embodiment
- FIG. 27 is a process diagram showing a coil manufacturing process
- FIG. 28 is an explanatory diagram for explaining a process of processing a conductor wire
- FIG. 29 is a conductor diagram. It is a top view which shows the process order of a line.
- the conductor wire is gripped at an arbitrary position, the processing is started, and the coil is manufactured while sequentially changing the gripping position, as in the first embodiment.
- the oblique side portion 21c is formed at the same time.
- the conductor wire 23 (FIG. 10) is gripped at an arbitrary location (step S41).
- the slot portion 21e on the terminal side of the first turn portion is pressed to manufacture a conductor wire in which the slot portion 21e on the terminal side is formed (step S11). )
- the conductor wire is inserted between the fixed mold 92 and the movable mold 91, and the movable mold 91 is pushed downward in FIG. 28 to form the top portion 21d and the two oblique sides 21c at the same time.
- the conductor wire 281 having the slot portion 21e, the oblique side portion 21c, the apex portion 21d, and the oblique side portion 21c shown in FIG.
- the slot portion 21a is subjected to pressure processing to form a conductor wire 282 having a slot portion 21e, a hypotenuse portion 21c, a top portion 21d, a hypotenuse portion 21c, and a slot portion 21a shown in FIG. 29B (step S13).
- 21d and two oblique sides 21c are formed simultaneously to form a conductor wire 283 shown in FIG. 29C (step S31), and then the slot portion 21a is pressed (step S13). Thereafter, the simultaneous formation of the top portion 21d and the oblique side portion 21c and the press working of the slot portion 21a are alternately performed, and the conductor wire 28 shown in FIG.
- the conductor wire 28 is sequentially subjected to the process of bending the slot portions 21a and 21e at a predetermined angle with respect to the oblique side portion 21c.
- a hexagonal coil before being formed which is wound a number of turns is formed. Since the subsequent steps are the same as those in the first embodiment, description thereof is omitted.
- the number of processes can be reduced and productivity can be improved by simultaneously forming the top and the hypotenuse.
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Abstract
Description
電機子巻線が電機子鉄心の円環状に配置された複数のスロットに装着された電機子を有し、前記電機子巻線は1本の導体線が複数回巻回されたコイルを有し、前記コイルはコイルエンド部と複数のスロット部とを有し、前記コイルエンド部は延長部と接続部とを有し前記延長部は前記スロット部から延長して設けられたものであり、前記接続部は前記延長部同士を接続するものであり、前記コイルエンド部を介して連なる二つの前記スロット部は二つの前記スロットにそれぞれ挿入されるものである回転電機の製造方法であって、前記コイルを形成する工程が次の工程を有する回転電機の製造方法。
(a)加圧加工工程と接続部形成工程とを交互に行う導体線加工工程であって、前記加圧加工工程は前記導体線を加圧することによって導体線の断面を塑性変形させて前記スロット部を形成するものであり、前記接続部形成工程は前記導体線に前記接続部を形成するものである導体線加工工程。
(b)前記スロット部および前記接続部が形成された前記導体線を曲げ加工して前記コイルエンド部を形成するコイルエンド部形成工程。
図1~図18は、この発明を実施するための実施の形態1を示すものであり、図1は回転電機を示す片側断面図、図2は回転電機の電機子および回転子を示す斜視図、図3は電機子を示す斜視図、図4は電機子の鉄心ブロックを示す斜視図、図5は電機子巻線を構成するコイルを示す斜視図、図6は電機子巻線を構成するコイルの頂部を示す平面図、図7はコイルの加工過程を説明するための正面図、図8はコイルを構成する導体線の断面形状を示すものであり、図8(a)はコイルエンド部の断面形状、図8(b)はスロット部の断面図である。図9はコイルの製造工程を示す工程図、図10は加工前の導体線を示す平面図である。図11は、金型を用いて導体線を塑性加工する過程を示す説明図である。図12は導体線の頂部の加工過程を示す説明図、図13は導体線の加工順序を示す平面図である。図14および図15はコイルの形成過程を示す説明図、図16は電機子巻線の斜視図である。図17は鉄心ブロックと電機子巻線を示す平面断面図、図18は電機子の平面図である。
図19、図20は、実施の形態2を示すものであり、図19はコイルの製造工程を示す工程図、図20は導体線の加工順序を示す平面図である。初めに、図10に示すのと同様の、1つのコイルをつくるために必要な長さの、断面寸法t×wである導体線を1本用意する。以下、図19に従って製造工程を説明する。ステップS21において、導体線23の任意の箇所(この実施の形態においては、他のコイルと接続するための延長部を有しており、この延長部を掴み代として利用している)を図20(a)に示すように把持ツール78にて把持する。次に、把持した箇所を基準として実施の形態1におけるステップS11と同様にして、第1ターン部の端末側のスロット部21eにあたる箇所を加圧加工し、加圧加工部(端末側のスロット部21e)の断面寸法を、t→t1、w→w1とし、図20(a)のスロット部21eを有する導体線251の状態にする。次に、最初に把持した箇所を基準として第1ターン部の頂部21dを形成し、図20(b)のスロット部21eおよび頂部21dを有する導体線252の状態にする(ステップS12)。
図21~図24は、実施の形態3を示すものであり、図21はコイルの製造工程を示す工程図、図22ないし図24は導体線を加工する工程を説明するための説明図である。この実施の形態においては、実施の形態2で示した頂部21dを形成する工程において同時に斜辺部21cを形成するようにしたものである。図21において、導体線23を任意の箇所で把持し(ステップS21)、第1ターン部の端末側のスロット部21eに相当する箇所の加圧加工を行い、スロット部21eを有する導体線26を製作する(ステップS11)のは、図19の実施の形態2と同様である。
図25、図26は、実施の形態4を示すものであり、図25はコイルの製造工程を示す工程図、図26は導体線を加工する工程を説明するための説明図である。この実施の形態においては、導体線を任意の箇所(但し、後ほどの掴み替えを避けるために、斜辺部21cに相当する部分)で把持し、加工を開始し、最後まで把持したままで成形前のコイルを製作する。以下、図25に基づいて製造工程を説明する。導体線23を任意の箇所で把持する(導体線把持工程としてのステップS41)。以後の加工工程は、導体線を把持したままで、かつこの把持位置を基準に実施される。以後、実施の形態1の図9におけるのと同様に、第1ターン部の端末側のスロット部21e(に相当する箇所、以下においては省略して記述する)の加圧加工を行い図26(a)の状態の導体線241とし(ステップS11)、頂部形成を行い図26(b)の状態の導体線242とし(ステップS12)、スロット部21aの加圧加工を行い図26(c)の状態の導体線243とし(ステップS13)、頂部21dの形成(ステップS14)の順に加工を行う。以後の加工については、実施の形態1におけるのと同様であるので、説明を省略する。
図27~図29は、実施の形態5を示すものであり、図27はコイルの製造工程を示す工程図、図28は導体線を加工する工程を説明するための説明図、図29は導体線の加工順序を示す平面図である。この実施の形態においては、導体線を任意の箇所で把持し、加工を開始し、逐次把持箇所を変更しながらコイルを製作するのは、実施の形態1と同様であるが、実施の形態1で示した頂部21dを形成する工程において同時に斜辺部21cを形成するようにしたものである。以下、図27に基づいて製造工程を説明する。導体線23(図10)を任意の箇所で把持する(ステップS41)。
Claims (5)
- 電機子巻線が電機子鉄心の円環状に配置された複数のスロットに装着された電機子を有し、前記電機子巻線は1本の導体線が複数回巻回されたコイルを有し、前記コイルはコイルエンド部と複数のスロット部とを有し、前記コイルエンド部は延長部と接続部とを有し前記延長部は前記スロット部から延長して設けられたものであり、前記接続部は前記延長部同士を接続するものであり、前記コイルエンド部を介して連なる二つの前記スロット部は二つの前記スロットにそれぞれ挿入されるものである回転電機の製造方法であって、前記コイルを形成する工程が次の工程を有する回転電機の製造方法。
(a)加圧加工工程と接続部形成工程とを交互に行う導体線加工工程であって、前記加圧加工工程は前記導体線を加圧することによって導体線の断面を塑性変形させて前記スロット部を形成するものであり、前記接続部形成工程は前記導体線に前記接続部を形成するものである導体線加工工程。
(b)前記スロット部および前記接続部が形成された前記導体線を曲げ加工して前記コイルエンド部を形成するコイルエンド部形成工程。 - 前記加圧加工工程は、前記接続部形成工程にて形成された前記接続部を基準として、前記接続部に隣接する前記スロット部を形成するものである
請求項1に記載の回転電機の製造方法。 - 前記導体線加工工程は、前記導体線を把持する導体線把持工程を有するものであって、前記加圧加工工程と前記接続部形成工程とは前記導体線の前記把持された箇所を基準として交互に行われるものである
請求項1に記載の回転電機の製造方法。 - 前記コイルエンド部形成工程は、前記接続部形成工程にて前記接続部を形成後続いて前記形成された接続部を動かすことなく前記接続部を含むコイルエンド部を形成するものである
請求項2または請求項3に記載の回転電機の製造方法。 - 前記加圧加工工程は、前記導体線を型に挿入して加圧することによって塑性変形させるものである
請求項1から請求項4のいずれか1項に記載の回転電機の製造方法。
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US15/128,857 US20170163133A1 (en) | 2014-06-20 | 2015-06-16 | Method for manufacturing dynamo-electric machine |
CN201580020353.0A CN106233593B (zh) | 2014-06-20 | 2015-06-16 | 旋转电机的制造方法 |
DE112015002921.4T DE112015002921T5 (de) | 2014-06-20 | 2015-06-16 | Verfahren zur Herstellung einer dynamoelektrischen Maschine |
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EP3484028A4 (en) * | 2017-08-04 | 2020-04-01 | Odawara Engineering Co., Ltd. | DEVICE AND METHOD FOR FORMING A COIL SEGMENT AND A DEVICE FOR MANUFACTURING A ROTATING ELECTRIC MACHINE |
JP7432290B2 (ja) | 2020-09-01 | 2024-02-16 | ダイハツ工業株式会社 | セグメントコイルの製造方法 |
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WO2015140970A1 (ja) * | 2014-03-19 | 2015-09-24 | 株式会社安川電機 | 回転電機及び回転電機の製造方法 |
JP7068012B2 (ja) * | 2018-04-06 | 2022-05-16 | トヨタ自動車株式会社 | 回転電機ステータの製造方法及び製造装置 |
AT521580A1 (de) * | 2018-09-12 | 2020-03-15 | Miba Ag | Verfahren zum Bereitstellen von Formstäben |
CN109746345B (zh) * | 2018-12-30 | 2024-03-22 | 苏州阿福机器人有限公司 | 一种用于扁线电机绕组中扁线折弯的装置 |
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DE112015002921T5 (de) | 2017-03-09 |
CN106233593A (zh) | 2016-12-14 |
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